Search found 96 matches

by Ivanovitch_k
Jul 04 2018 3:27pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Please post more pics as you progress,very cool modification! So there are a few blank spots there for some additional cells? :) No. Amongst the 5 cell holders, only the lower one has 2 empty slots. There are 16 cells per holder. 4 * 16 + 14 = 78 cells. As per Ivy, the 52V version in the same casin...
by Ivanovitch_k
Jul 02 2018 4:51pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

thinking about battery and bad connections inside there, could that be a possible and explain these "speed boosts"? Or how does your bike go with only throttle? From your video it doesn’t look like a connection issue. If it was, it would be happening randomly, and more so at higher speeds because o...
by Ivanovitch_k
Jul 01 2018 5:49pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Or should I test to change throttle handle mode speed to "current" ? Yes, change it to Current mode. It's much smoother. You can also try to lower start and increase end voltages to better match your specific throttle model response. Try 1 by 1 mv until you get something that doesn't work anymore a...
by Ivanovitch_k
Jul 01 2018 5:24pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

battery disassembly day. Still applying the famous Australian motto "Don't turn it on, take it apart" :mrgreen: Doing so mostly because I'm changing the BMS for a speedict neptune 15 ( a very cool piece of kit ) but also to check the assembly for potential issues... So this is the 48V 21Ah model, 13...
by Ivanovitch_k
Jun 30 2018 4:12am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Tom L wrote:
Jun 29 2018 11:38pm
The throttle seems a lot more linear than my BBS02.
big +1, bafang really improved the throttle sensitivity levels vs the BBS02B
by Ivanovitch_k
Jun 27 2018 4:08pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBSxx - fault finding and fixes
Replies: 1044
Views: 175733

Re: Bafang BBSxx - fault finding and fixes

I find Boeshield to never insulate. boeshield is an oil / spray stuff right ? it's much thinner than silicone grease and that might well be why it's working. One could also use noalox antioxydant paste. It's a non-insulating anti-corrosion grease made for aluminium & cooper electrical connections. ...
by Ivanovitch_k
Jun 26 2018 4:33pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBSxx - fault finding and fixes
Replies: 1044
Views: 175733

Re: Bafang BBSxx - fault finding and fixes

I had some dielectric grease, but this did not help. How should one apply dielectric grease? I think i used to much. Hard to tell from the picture, but It looks like the negative contact arced hard or often enough to vaporize the metal and deposit carbon (soot-like) inside the neg. post. And it see...
by Ivanovitch_k
Jun 25 2018 3:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

There is a connection inside the motor housing. It's possible if the wire got pulled or just from vibration it may have partially unplugged itself. unlikely. If he has a recent (V1.5) motor, the EBUS connector is so close to the next one that it's locking tab is blocked. It can go in but is very ha...
by Ivanovitch_k
Jun 25 2018 3:25pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

I can't contact either. She can't be far, I got a message from her yesterday too. And I have serious problems with the rear wheel. My core and the axis are destroyed. It's likely those cheap Novatec hubs can't handle the torque of the ultra... If you can get some money back from frey, you could get...
by Ivanovitch_k
Jun 24 2018 4:00pm
Forum: E-Bike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 242
Views: 45960

Re: How To, 50A BBSHD Controller Mod

Sorry guys, don't want to go too much off-topic here. But I just received another Bafang Ultra wich I bought of Aliexpress from a "reliable" company. Price was quite good. It arrived today and I opened it up immediately to compare it with my Luna Ludicrous version. The Ludicrous is a 1.3 version an...
by Ivanovitch_k
Jun 24 2018 2:36pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang Max Drive - configuring
Replies: 52
Views: 26939

Re: Bafang Max Drive - configuring

apparently bafang changed the shunt to a double one V1.5 power pcba. Mods will be much easier. here is mine, at least produced on or after march. 2018 (some sticker with date code in it): https://reho.st/medium/self/43b855e3684e383810fd01e75e9138a6d95f61dd.jpg Mosfets are different too (P/N: EK0680...
by Ivanovitch_k
Jun 23 2018 7:39am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

The shims should work if you get the right size. Thudbuster seat posts have the same issue. There are so many sizes of seat tubes out there it's hard to fit them all. I use shims with my Thudbuster and it's rock solid. They will, but here it's not a post issue, it's a frame spec one. First frame re...
by Ivanovitch_k
Jun 21 2018 4:25pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

I have done a small video to showcase the seatpost issue XU7f5gIugxc Hi, one point confirm to all friends, some maybe confused earlier about the seat tube. Now on 2018 AM1000 the precise matching diameter of seat post is 31.8mm Ok, thanks for the clarification. Although, It would have been better to...
by Ivanovitch_k
Jun 19 2018 6:55pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Could someone with an unmodified light cable check what the voltage is[...] Have you tried using the second light connector (I listed them a few posts back ) ? I think one is always on (when display is set on) and another is enabled / goes higher voltage on braking. I will play around with a test s...
by Ivanovitch_k
Jun 17 2018 7:43am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

nice & simple light hack ! question for those who installed a dropper / changed the post. How was the fitting in the downtube ? I have a 31.6 thomson post and I can clearly feel it loose /rattling when the QR isn't tight. On other frames this does not happen, i.e. the post can be slided in / out but...
by Ivanovitch_k
Jun 13 2018 2:29pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

my 2 cts: commuting at ebike speeds on an hardtail can be done but potholes and rough roads are more than a discomfort. suspension seatposts and wide, low pressure tires do help but when you roll over a bad pothole at 40+ kph you understand why all other 2-wheel motor vehicles have rear suspensions....
by Ivanovitch_k
Jun 12 2018 2:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

trooper5707 wrote:
Jun 12 2018 11:31am
Hmm, I am reading it as 11/48 unless I am missing something?

https://ebike-mtb.com/en/sram-ex1-revie ... in-e-mtbs/
snap, you're right, had eagle 12S range in my mind ! Edited the post.
But anyways, 11T is still very small even a bbs02 can make it skip in no time :'(
by Ivanovitch_k
Jun 12 2018 11:20am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

reduce the use of the 11T sprocket which has a very hard time handling non-human power. Exactly why the EX-1 is worth the upgrade IMHO - my understanding is it is designed to shift under power and built for power use. My ICE powered bike is a jackshaft setup, so also uses chain drive like a mid eng...
by Ivanovitch_k
Jun 12 2018 4:43am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

My opinion, since your use for street commuters, Hard tail plus a nice back rack is much suitable. Tyre Schwalbe Super Moto-X wheel size 27.5' 2.8'. This tyre was build for Ebike on speed 50km/h or 31miles/hr. It suitable for Road and Tarmac purpose. +1. Unless you have extremely steep hills in you...
by Ivanovitch_k
Jun 10 2018 10:25am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

FREYebikes wrote:
Jun 07 2018 11:38pm
And there is some slight gap between battery and the holder, we put one 2 piece of 3M gel to make it holder better and no move. it will be more stable then.
this is a good idea, but it's only a temporary fix. The gel will get compressed over time and at some point the issues will come back.
by Ivanovitch_k
Jun 10 2018 9:30am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Some more remarks about the frame (might not be the last, i'm reviewing every single mm of the frame before doing the final assembly). Rear disc mounting posts: Not faced. Heavy paint globs on them. Not good as it renders the caliper / disc alignment hard to achieve resulting in sub optimal braking ...
by Ivanovitch_k
Jun 10 2018 7:36am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Frey, Headset bearing races were installed dry. No grease. This is bad practice. They will be very hard / impossible to remove once corroded. Also, the head tube was not faced, nor reamed --> dimensional tolerances are all over the place. Upper tube inner diameter varies 43.5 to 44.5mm. This is a lo...
by Ivanovitch_k
Jun 08 2018 5:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Does anyone know a way to put on a strong, stable rear rack on a bike like this? got a thule for my am1000 but as you said it's flimsy and the rectangular profile of the rear suspension doesn't help. One of the good options would be thru axle mounted racks like the one from old man mountain, howeve...
by Ivanovitch_k
Jun 06 2018 5:37pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Anybody else had problems with the battery connectors? The connectors used by Reention do look cheap. Overall the battery retaining system is not great. Still a step up from bottle rivnut ones but far from bosch/yam/... models. Anyways most of China-designed e-bike battery cases are meh... I've sta...
by Ivanovitch_k
Jun 01 2018 2:10pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1871
Views: 262281

Re: My Bafang Ultra Mountain Bike! Frey AM1000

There is no room to pull the anderson power connectors out once the cover plate over the motor is removed from the frame. Looks like I am going to have to drop the motor out to get at the power cables. The motor to frame bolts are extremely tight and blue loctited. Going to need the heat gun and 1/...